#
FIND_PACKAGE(LZMA)
IF(LZMA_FOUND)
- SET(HAVE_LIBLZMADEC 1)
- SET(HAVE_LZMADEC_H 1)
+ SET(HAVE_LIBLZMA 1)
+ SET(HAVE_LZMA_H 1)
INCLUDE_DIRECTORIES(${LZMA_INCLUDE_DIR})
LIST(APPEND ADDITIONAL_LIBS ${LZMA_LIBRARIES})
+ELSEIF(LZMADEC_FOUND)
+ SET(HAVE_LIBLZMADEC 1)
+ SET(HAVE_LZMADEC_H 1)
+ INCLUDE_DIRECTORIES(${LZMADEC_INCLUDE_DIR})
+ LIST(APPEND ADDITIONAL_LIBS ${LZMADEC_LIBRARIES})
ENDIF(LZMA_FOUND)
#
libarchive/archive_read_support_compression_none.c \
libarchive/archive_read_support_compression_program.c \
libarchive/archive_read_support_compression_lzma.c \
+ libarchive/archive_read_support_compression_xz.c \
libarchive/archive_read_support_format_all.c \
libarchive/archive_read_support_format_ar.c \
libarchive/archive_read_support_format_cpio.c \
libarchive/archive_write_set_compression_gzip.c \
libarchive/archive_write_set_compression_none.c \
libarchive/archive_write_set_compression_program.c \
+ libarchive/archive_write_set_compression_xz.c \
libarchive/archive_write_set_format.c \
libarchive/archive_write_set_format_ar.c \
libarchive/archive_write_set_format_by_name.c \
-# - Find lzma
+# - Find lzma and lzmadec
# Find the native LZMA includes and library
#
-# LZMA_INCLUDE_DIR - where to find zlib.h, etc.
-# LZMA_LIBRARIES - List of libraries when using zlib.
-# LZMA_FOUND - True if zlib found.
+# LZMA_INCLUDE_DIR - where to find lzma.h, etc.
+# LZMA_LIBRARIES - List of libraries when using liblzma.
+# LZMA_FOUND - True if liblzma found.
+# LZMADEC_INCLUDE_DIR - where to find lzmadec.h, etc.
+# LZMADEC_LIBRARIES - List of libraries when using liblzmadec.
+# LZMADEC_FOUND - True if liblzmadec found.
IF (LZMA_INCLUDE_DIR)
# Already in cache, be silent
SET(LZMA_FIND_QUIETLY TRUE)
ENDIF (LZMA_INCLUDE_DIR)
-FIND_PATH(LZMA_INCLUDE_DIR lzmadec.h)
-FIND_LIBRARY(LZMA_LIBRARY NAMES lzmadec )
+FIND_PATH(LZMA_INCLUDE_DIR lzma.h)
+FIND_LIBRARY(LZMA_LIBRARY NAMES lzma )
# handle the QUIETLY and REQUIRED arguments and set LZMA_FOUND to TRUE if
# all listed variables are TRUE
SET( LZMA_LIBRARIES ${LZMA_LIBRARY} )
ELSE(LZMA_FOUND)
SET( LZMA_LIBRARIES )
+
+ IF (LZMADEC_INCLUDE_DIR)
+ # Already in cache, be silent
+ SET(LZMADEC_FIND_QUIETLY TRUE)
+ ENDIF (LZMADEC_INCLUDE_DIR)
+
+ FIND_PATH(LZMADEC_INCLUDE_DIR lzmadec.h)
+ FIND_LIBRARY(LZMADEC_LIBRARY NAMES lzmadec )
+
+ # handle the QUIETLY and REQUIRED arguments and set LZMADEC_FOUND to TRUE if
+ # all listed variables are TRUE
+ INCLUDE(FindPackageHandleStandardArgs)
+ FIND_PACKAGE_HANDLE_STANDARD_ARGS(LZMADEC DEFAULT_MSG LZMADEC_LIBRARY
+ LZMADEC_INCLUDE_DIR)
+
+ IF(LZMADEC_FOUND)
+ SET( LZMADEC_LIBRARIES ${LZMADEC_LIBRARY} )
+ ELSE(LZMADEC_FOUND)
+ SET( LZMADEC_LIBRARIES )
+ ENDIF(LZMADEC_FOUND)
ENDIF(LZMA_FOUND)
-MARK_AS_ADVANCED( LZMA_LIBRARY LZMA_INCLUDE_DIR )
+
+MARK_AS_ADVANCED( LZMA_LIBRARY LZMA_INCLUDE_DIR
+ LZMADEC_LIBRARY LZMADEC_INCLUDE_DIR )
/* Define to 1 if you have the `bz2' library (-lbz2). */
#cmakedefine HAVE_LIBBZ2 1
+/* Define to 1 if you have the `lzma' library (-llzma). */
+#cmakedefine HAVE_LIBLZMA 1
+
/* Define to 1 if you have the `lzmadec' library (-llzmadec). */
#cmakedefine HAVE_LIBLZMADEC 1
/* Define to 1 if you have the <lzmadec.h> header file. */
#cmakedefine HAVE_LZMADEC_H 1
+/* Define to 1 if you have the <lzma.h> header file. */
+#cmakedefine HAVE_LZMA_H 1
+
/* Define to 1 if you have the `MD5' functions. */
#cmakedefine HAVE_MD5 1
AC_CHECK_LIB(lzmadec,lzmadec_decode)
fi
+AC_ARG_WITH([lzma],
+ AS_HELP_STRING([--without-lzma], [Don't build support for xz through lzma]))
+
+if test "x$with_lzma" != "xno"; then
+ AC_CHECK_HEADERS([lzma.h])
+ AC_CHECK_LIB(lzma,lzma_stream_decoder)
+fi
+
AC_CHECK_HEADERS([openssl/md5.h openssl/ripemd.h openssl/sha.h])
AC_CHECK_HEADERS([md5.h md5global.h])
AC_CHECK_HEADERS([ripemd.h rmd160.h])
#define ARCHIVE_COMPRESSION_COMPRESS 3
#define ARCHIVE_COMPRESSION_PROGRAM 4
#define ARCHIVE_COMPRESSION_LZMA 5
+#define ARCHIVE_COMPRESSION_XZ 6
/*
* Codes returned by archive_format.
__LA_DECL int archive_read_support_compression_none(struct archive *);
__LA_DECL int archive_read_support_compression_program(struct archive *,
const char *command);
+__LA_DECL int archive_read_support_compression_xz(struct archive *);
__LA_DECL int archive_read_support_format_all(struct archive *);
__LA_DECL int archive_read_support_format_ar(struct archive *);
__LA_DECL int archive_write_set_compression_bzip2(struct archive *);
__LA_DECL int archive_write_set_compression_compress(struct archive *);
__LA_DECL int archive_write_set_compression_gzip(struct archive *);
+__LA_DECL int archive_write_set_compression_lzma(struct archive *);
__LA_DECL int archive_write_set_compression_none(struct archive *);
__LA_DECL int archive_write_set_compression_program(struct archive *,
const char *cmd);
+__LA_DECL int archive_write_set_compression_xz(struct archive *);
/* A convenience function to set the format based on the code or name. */
__LA_DECL int archive_write_set_format(struct archive *, int format_code);
__LA_DECL int archive_write_set_format_by_name(struct archive *,
* the LZMA file format has a very weak signature. It
* may not be feasible to include LZMA detection here. */
/* archive_read_support_compression_lzma(a); */
+#endif
+#if HAVE_LZMA_H
+ archive_read_support_compression_xz(a);
#endif
return (ARCHIVE_OK);
}
#include "archive_private.h"
#include "archive_read_private.h"
+#ifndef HAVE_LZMA_H
#if HAVE_LZMADEC_H
struct private_data {
lzmadec_stream stream;
}
#endif /* HAVE_LZMADEC_H */
+#endif /* HAVE_LZMA_H */
--- /dev/null
+/*-
+ * Copyright (c) 2009 Michihiro NAKAJIMA
+ * Copyright (c) 2003-2008 Tim Kientzle and Miklos Vajna
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "archive_platform.h"
+
+__FBSDID("$FreeBSD$");
+
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#include <stdio.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_LZMA_H
+#include <lzma.h>
+#endif
+
+#include "archive.h"
+#include "archive_private.h"
+#include "archive_read_private.h"
+
+#if HAVE_LZMA_H
+struct private_data {
+ lzma_stream stream;
+ unsigned char *out_block;
+ size_t out_block_size;
+ int64_t total_out;
+ char eof; /* True = found end of compressed data. */
+};
+
+/* Lzma filter */
+static ssize_t xz_filter_read(struct archive_read_filter *, const void **);
+static int xz_filter_close(struct archive_read_filter *);
+#endif
+
+/*
+ * Note that we can detect xz archives even if we can't decompress
+ * them. (In fact, we like detecting them because we can give better
+ * error messages.) So the bid framework here gets compiled even
+ * if lzma is unavailable.
+ */
+static int xz_lzma_bidder_init(struct archive_read_filter *, int code);
+#ifndef HAVE_LZMADEC_H
+static int lzma_bidder_bid(struct archive_read_filter_bidder *,
+ struct archive_read_filter *);
+static int lzma_bidder_init(struct archive_read_filter *);
+#endif
+static int xz_bidder_bid(struct archive_read_filter_bidder *,
+ struct archive_read_filter *);
+static int xz_bidder_init(struct archive_read_filter *);
+static int xz_bidder_free(struct archive_read_filter_bidder *);
+
+int
+archive_read_support_compression_xz(struct archive *_a)
+{
+ struct archive_read *a = (struct archive_read *)_a;
+ struct archive_read_filter_bidder *bidder = __archive_read_get_bidder(a);
+
+ if (bidder == NULL)
+ return (ARCHIVE_FATAL);
+
+ bidder->data = NULL;
+ bidder->bid = xz_bidder_bid;
+ bidder->init = xz_bidder_init;
+ bidder->options = NULL;
+ bidder->free = xz_bidder_free;
+ return (ARCHIVE_OK);
+}
+
+#ifndef HAVE_LZMADEC_H
+int
+archive_read_support_compression_lzma(struct archive *_a)
+{
+ struct archive_read *a = (struct archive_read *)_a;
+ struct archive_read_filter_bidder *bidder = __archive_read_get_bidder(a);
+
+ if (bidder == NULL)
+ return (ARCHIVE_FATAL);
+
+ bidder->data = NULL;
+ bidder->bid = lzma_bidder_bid;
+ bidder->init = lzma_bidder_init;
+ bidder->options = NULL;
+ bidder->free = xz_bidder_free;
+ return (ARCHIVE_OK);
+}
+#endif
+
+static int
+xz_bidder_free(struct archive_read_filter_bidder *self){
+ (void)self; /* UNUSED */
+ return (ARCHIVE_OK);
+}
+
+/*
+ * Test whether we can handle this data.
+ *
+ * This logic returns zero if any part of the signature fails. It
+ * also tries to Do The Right Thing if a very short buffer prevents us
+ * from verifying as much as we would like.
+ *
+ */
+static int
+xz_bidder_bid(struct archive_read_filter_bidder *self,
+ struct archive_read_filter *filter)
+{
+ const unsigned char *buffer;
+ size_t avail;
+ int bits_checked;
+
+ (void)self; /* UNUSED */
+
+ buffer = __archive_read_filter_ahead(filter, 6, &avail);
+ if (buffer == NULL)
+ return (0);
+
+ /*
+ * Verify Header Magic Bytes : FD 37 7A 58 5A 00
+ */
+ bits_checked = 0;
+ if (buffer[0] != 0xFD)
+ return (0);
+ bits_checked += 8;
+ if (buffer[1] != 0x37)
+ return (0);
+ bits_checked += 8;
+ if (buffer[2] != 0x7A)
+ return (0);
+ bits_checked += 8;
+ if (buffer[3] != 0x58)
+ return (0);
+ bits_checked += 8;
+ if (buffer[4] != 0x5A)
+ return (0);
+ bits_checked += 8;
+ if (buffer[5] != 0x00)
+ return (0);
+ bits_checked += 8;
+
+ return (bits_checked);
+}
+
+#ifndef HAVE_LZMADEC_H
+/*
+ * Test whether we can handle this data.
+ *
+ * This logic returns zero if any part of the signature fails. It
+ * also tries to Do The Right Thing if a very short buffer prevents us
+ * from verifying as much as we would like.
+ *
+ * <sigh> LZMA has a rather poor file signature. Zeros do not
+ * make good signature bytes as a rule, and the only non-zero byte
+ * here is an ASCII character. For example, an uncompressed tar
+ * archive whose first file is ']' would satisfy this check. It may
+ * be necessary to exclude LZMA from compression_all() because of
+ * this. Clients of libarchive would then have to explicitly enable
+ * LZMA checking instead of (or in addition to) compression_all() when
+ * they have other evidence (file name, command-line option) to go on.
+ */
+static int
+lzma_bidder_bid(struct archive_read_filter_bidder *self,
+ struct archive_read_filter *filter)
+{
+ const unsigned char *buffer;
+ size_t avail;
+ int bits_checked;
+
+ (void)self; /* UNUSED */
+
+ buffer = __archive_read_filter_ahead(filter, 6, &avail);
+ if (buffer == NULL)
+ return (0);
+
+ /* First byte of raw LZMA stream is always 0x5d. */
+ bits_checked = 0;
+ if (buffer[0] != 0x5d)
+ return (0);
+ bits_checked += 8;
+
+ /* Second through fifth bytes are dictionary code, stored in
+ * little-endian order. The two least-significant bytes are
+ * always zero. */
+ if (buffer[1] != 0 || buffer[2] != 0)
+ return (0);
+ bits_checked += 16;
+
+ /* ??? TODO: Fix this. ??? */
+ /* NSIS format check uses this, but I've seen tar.lzma
+ * archives where this byte is 0xff, not 0. Can it
+ * ever be anything other than 0 or 0xff?
+ */
+#if 0
+ if (buffer[5] != 0)
+ return (0);
+ bits_checked += 8;
+#endif
+
+ /* TODO: The above test is still very weak. It would be
+ * good to do better. */
+
+ return (bits_checked);
+}
+#endif
+
+#ifndef HAVE_LZMA_H
+
+/*
+ * If we don't have the library on this system, we can't actually do the
+ * decompression. We can, however, still detect compressed archives
+ * and emit a useful message.
+ */
+static int
+xz_bidder_init(struct archive_read_filter *filter)
+{
+ (void)filter; /* UNUSED */
+
+ archive_set_error(&filter->archive->archive, -1,
+ "This version of libarchive was compiled without xz support");
+ return (ARCHIVE_FATAL);
+}
+
+
+#else
+
+static int
+xz_bidder_init(struct archive_read_filter *self)
+{
+ return (xz_lzma_bidder_init(self, ARCHIVE_COMPRESSION_XZ));
+}
+
+#ifndef HAVE_LZMADEC_H
+static int
+lzma_bidder_init(struct archive_read_filter *self)
+{
+ return (xz_lzma_bidder_init(self, ARCHIVE_COMPRESSION_LZMA));
+}
+#endif
+
+/*
+ * Setup the callbacks.
+ */
+static int
+xz_lzma_bidder_init(struct archive_read_filter *self, int code)
+{
+ static const size_t out_block_size = 64 * 1024;
+ void *out_block;
+ const char *buff;
+ struct private_data *state;
+ int ret;
+
+ self->code = code;
+ self->name = (code == ARCHIVE_COMPRESSION_XZ)?"xz": "lzma";
+
+ state = (struct private_data *)calloc(sizeof(*state), 1);
+ out_block = (unsigned char *)malloc(out_block_size);
+ if (state == NULL || out_block == NULL) {
+ archive_set_error(&self->archive->archive, ENOMEM,
+ "Can't allocate data for xz decompression");
+ free(out_block);
+ free(state);
+ return (ARCHIVE_FATAL);
+ }
+
+ self->data = state;
+ state->out_block_size = out_block_size;
+ state->out_block = out_block;
+ self->read = xz_filter_read;
+ self->skip = NULL; /* not supported */
+ self->close = xz_filter_close;
+
+ state->stream.next_in = buff;
+ state->stream.avail_in = ret;
+
+ state->stream.next_out = state->out_block;
+ state->stream.avail_out = state->out_block_size;
+
+ /* Initialize compression library.
+ * TODO: I don't know what value is best for memlimit.
+ * maybe, it needs to check memory size which
+ * running system has.
+ */
+ if (code == ARCHIVE_COMPRESSION_XZ)
+ ret = lzma_stream_decoder(&(state->stream),
+ (1U << 23) + (1U << 21),/* memlimit */
+ LZMA_CONCATENATED);
+ else
+ lzma_alone_decoder(&(state->stream),
+ (1U << 23) + (1U << 21));/* memlimit */
+
+ if (ret == LZMA_OK)
+ return (ARCHIVE_OK);
+
+ /* Library setup failed: Clean up. */
+ archive_set_error(&self->archive->archive, ARCHIVE_ERRNO_MISC,
+ "Internal error initializing lzma library");
+
+ /* Override the error message if we know what really went wrong. */
+ switch (ret) {
+ case LZMA_MEM_ERROR:
+ archive_set_error(&self->archive->archive, ENOMEM,
+ "Internal error initializing compression library: "
+ "Cannot allocate memory");
+ break;
+ case LZMA_OPTIONS_ERROR:
+ archive_set_error(&self->archive->archive,
+ ARCHIVE_ERRNO_MISC,
+ "Internal error initializing compression library: "
+ "Invalid or unsupported options");
+ break;
+ }
+
+ free(state->out_block);
+ free(state);
+ self->data = NULL;
+ return (ARCHIVE_FATAL);
+}
+
+/*
+ * Return the next block of decompressed data.
+ */
+static ssize_t
+xz_filter_read(struct archive_read_filter *self, const void **p)
+{
+ struct private_data *state;
+ size_t read_avail, decompressed;
+ const void *read_buf;
+ int ret;
+
+ state = (struct private_data *)self->data;
+ read_avail = 0;
+
+ /* Empty our output buffer. */
+ state->stream.next_out = state->out_block;
+ state->stream.avail_out = state->out_block_size;
+
+ /* Try to fill the output buffer. */
+ while (state->stream.avail_out > 0 && !state->eof) {
+ /* If the last upstream block is done, get another one. */
+ if (state->stream.avail_in == 0) {
+ read_buf = __archive_read_filter_ahead(self->upstream,
+ 1, &ret);
+ if (ret == 0) {
+ state->eof = 1;
+ break;
+ }
+ if (read_buf == NULL || ret < 0)
+ return (ARCHIVE_FATAL);
+ /* stream.next_in is really const, but lzma
+ * doesn't declare it so. <sigh> */
+ state->stream.next_in
+ = (unsigned char *)(uintptr_t)read_buf;
+ state->stream.avail_in = ret;
+ __archive_read_filter_consume(self->upstream, ret);
+ }
+
+ /* Decompress as much as we can in one pass. */
+ ret = lzma_code(&(state->stream),
+ (state->stream.avail_in == 0)? LZMA_FINISH: LZMA_RUN);
+ switch (ret) {
+ case LZMA_STREAM_END: /* Found end of stream. */
+ state->eof = 1;
+ case LZMA_OK: /* Decompressor made some progress. */
+ break;
+ case LZMA_MEM_ERROR:
+ archive_set_error(&self->archive->archive, ENOMEM,
+ "Internal error decompressing compression library: "
+ "Cannot allocate memory");
+ break;
+ case LZMA_MEMLIMIT_ERROR:
+ archive_set_error(&self->archive->archive, ENOMEM,
+ "Internal error decompressing compression library: "
+ "Memory usage limit was reached");
+ break;
+ case LZMA_FORMAT_ERROR:
+ archive_set_error(&self->archive->archive,
+ ARCHIVE_ERRNO_MISC,
+ "Internal error decompressing compression library: "
+ "File format not recognized");
+ break;
+ case LZMA_OPTIONS_ERROR:
+ archive_set_error(&self->archive->archive,
+ ARCHIVE_ERRNO_MISC,
+ "Internal error decompressing compression library: "
+ "Invalid or unsupported options");
+ break;
+ case LZMA_DATA_ERROR:
+ archive_set_error(&self->archive->archive,
+ ARCHIVE_ERRNO_MISC,
+ "Internal error decompressing compression library: "
+ "Data is corrupt");
+ break;
+ case LZMA_BUF_ERROR:
+ archive_set_error(&self->archive->archive,
+ ARCHIVE_ERRNO_MISC,
+ "Internal error decompressing compression library: "
+ "No progress is possible");
+ return (ARCHIVE_FATAL);
+ default:
+ /* Return an error. */
+ archive_set_error(&self->archive->archive,
+ ARCHIVE_ERRNO_MISC,
+ "%s decompression failed",
+ self->archive->archive.compression_name);
+ return (ARCHIVE_FATAL);
+ }
+ }
+
+ *p = state->out_block;
+ decompressed = state->stream.next_out - state->out_block;
+ state->total_out += decompressed;
+ return (decompressed);
+}
+
+/*
+ * Clean up the decompressor.
+ */
+static int
+xz_filter_close(struct archive_read_filter *self)
+{
+ struct private_data *state;
+
+ state = (struct private_data *)self->data;
+ lzma_end(&(state->stream));
+ free(state->out_block);
+ free(state);
+ return (ARCHIVE_OK);
+}
+
+#endif /* HAVE_LZMA_H */
--- /dev/null
+/*-
+ * Copyright (c) 2009 Michihiro NAKAJIMA
+ * Copyright (c) 2003-2007 Tim Kientzle
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "archive_platform.h"
+
+__FBSDID("$FreeBSD$");
+
+#ifdef HAVE_CTYPE_H
+#include <ctype.h>
+#endif
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#include <time.h>
+#ifdef HAVE_LZMA_H
+#include <lzma.h>
+#endif
+
+#include "archive.h"
+#include "archive_private.h"
+#include "archive_write_private.h"
+
+#ifndef HAVE_LZMA_H
+int
+archive_write_set_compression_xz(struct archive *_a)
+{
+ /* Unsupported xz compression, we don't have liblzma */
+ return (ARCHIVE_FATAL);
+}
+#else
+/* Don't compile this if we don't have liblzma. */
+
+struct private_data {
+ lzma_stream stream;
+ lzma_filter lzmafilters[2];
+ lzma_options_lzma lzma_opt;
+ int64_t total_in;
+ unsigned char *compressed;
+ size_t compressed_buffer_size;
+ /* Options */
+ uint32_t compression_level;
+};
+
+
+static int archive_compressor_xz_lzma_init(struct archive_write *, int);
+static int archive_compressor_lzma_init(struct archive_write *);
+static int archive_compressor_xz_finish(struct archive_write *);
+static int archive_compressor_xz_init(struct archive_write *);
+static int archive_compressor_xz_options(struct archive_write *,
+ const char *, const char *);
+static int archive_compressor_xz_write(struct archive_write *,
+ const void *, size_t);
+static int drive_compressor(struct archive_write *, struct private_data *,
+ int finishing);
+
+
+/*
+ * Allocate, initialize and return a archive object.
+ */
+int
+archive_write_set_compression_xz(struct archive *_a)
+{
+ struct archive_write *a = (struct archive_write *)_a;
+ __archive_check_magic(&a->archive, ARCHIVE_WRITE_MAGIC,
+ ARCHIVE_STATE_NEW, "archive_write_set_compression_xz");
+ a->compressor.init = &archive_compressor_xz_init;
+ return (ARCHIVE_OK);
+}
+
+int
+archive_write_set_compression_lzma(struct archive *_a)
+{
+ struct archive_write *a = (struct archive_write *)_a;
+ __archive_check_magic(&a->archive, ARCHIVE_WRITE_MAGIC,
+ ARCHIVE_STATE_NEW, "archive_write_set_compression_lzma");
+ a->compressor.init = &archive_compressor_lzma_init;
+ return (ARCHIVE_OK);
+}
+
+static int
+archive_compressor_xz_init(struct archive_write *a)
+{
+ return (archive_compressor_xz_lzma_init(a, ARCHIVE_COMPRESSION_XZ));
+}
+
+static int
+archive_compressor_lzma_init(struct archive_write *a)
+{
+ return (archive_compressor_xz_lzma_init(a, ARCHIVE_COMPRESSION_LZMA));
+}
+
+static int
+archive_compressor_xz_init_stream(struct archive_write *a)
+{
+ struct private_data *state;
+ int ret;
+
+ state = (struct private_data *)a->compressor.data;
+
+ state->stream = (lzma_stream)LZMA_STREAM_INIT;
+ state->stream.next_out = state->compressed;
+ state->stream.avail_out = state->compressed_buffer_size;
+ if (a->archive.compression_code == ARCHIVE_COMPRESSION_XZ)
+ ret = lzma_stream_encoder(&(state->stream),
+ state->lzmafilters, LZMA_CHECK_CRC64);
+ else
+ ret = lzma_alone_encoder(&(state->stream), &state->lzma_opt);
+ if (ret == LZMA_OK)
+ return (ARCHIVE_OK);
+
+ switch (ret) {
+ case LZMA_MEM_ERROR:
+ archive_set_error(&a->archive, ENOMEM,
+ "Internal error initializing compression library: "
+ "Cannot allocate memory");
+ break;
+ default:
+ archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
+ "Internal error initializing compression library: "
+ "It's a bug in liblzma");
+ break;
+ }
+ return (ARCHIVE_FATAL);
+}
+
+/*
+ * Setup callback.
+ */
+static int
+archive_compressor_xz_lzma_init(struct archive_write *a, int code)
+{
+ int ret;
+ struct private_data *state;
+ time_t t;
+
+ a->archive.compression_code = code;
+ a->archive.compression_name =
+ (code == ARCHIVE_COMPRESSION_XZ)? "xz" : "lzma";
+
+ if (a->client_opener != NULL) {
+ ret = (a->client_opener)(&a->archive, a->client_data);
+ if (ret != ARCHIVE_OK)
+ return (ret);
+ }
+
+ state = (struct private_data *)malloc(sizeof(*state));
+ if (state == NULL) {
+ archive_set_error(&a->archive, ENOMEM,
+ "Can't allocate data for compression");
+ return (ARCHIVE_FATAL);
+ }
+ memset(state, 0, sizeof(*state));
+
+ /*
+ * See comment above. We should set compressed_buffer_size to
+ * max(bytes_per_block, 65536), but the code can't handle that yet.
+ */
+ state->compressed_buffer_size = a->bytes_per_block;
+ state->compressed = (unsigned char *)malloc(state->compressed_buffer_size);
+ state->compression_level = LZMA_PRESET_DEFAULT;
+
+ if (state->compressed == NULL) {
+ archive_set_error(&a->archive, ENOMEM,
+ "Can't allocate data for compression buffer");
+ free(state);
+ return (ARCHIVE_FATAL);
+ }
+ a->compressor.options = archive_compressor_xz_options;
+ a->compressor.write = archive_compressor_xz_write;
+ a->compressor.finish = archive_compressor_xz_finish;
+
+ /* Initialize compression library. */
+ if (lzma_lzma_preset(&state->lzma_opt, state->compression_level)) {
+ archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
+ "Internal error initializing compression library");
+ free(state->compressed);
+ free(state);
+ }
+ state->lzmafilters[0].id = LZMA_FILTER_LZMA2;
+ state->lzmafilters[0].options = &state->lzma_opt;
+ state->lzmafilters[1].id = LZMA_VLI_UNKNOWN;/* Terminate */
+ ret = archive_compressor_xz_init_stream(a);
+ if (ret == LZMA_OK) {
+ a->compressor.data = state;
+ return (0);
+ }
+ /* Library setup failed: clean up. */
+ free(state->compressed);
+ free(state);
+
+ return (ARCHIVE_FATAL);
+}
+
+/*
+ * Set write options.
+ */
+static int
+archive_compressor_xz_options(struct archive_write *a, const char *key,
+ const char *value)
+{
+ struct private_data *state;
+ int ret;
+
+ state = (struct private_data *)a->compressor.data;
+ if (strcmp(key, "compression-level") == 0) {
+ /*
+ * compression level : 0 .. 9
+ */
+ int level;
+
+ if (value == NULL || !isdigit(value[0]) || value[1] != '\0')
+ return (ARCHIVE_WARN);
+ level = value[0] - '0';
+ if (level == state->compression_level)
+ return (ARCHIVE_OK);
+ if (lzma_lzma_preset(&state->lzma_opt, level)) {
+ archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
+ "Internal error compression library");
+ return (ARCHIVE_FATAL);
+ }
+ /*
+ * Reinitialize
+ */
+ lzma_end(&(state->stream));
+ ret = archive_compressor_xz_init_stream(a);
+ if (ret == LZMA_OK) {
+ state->compression_level = level;
+ return (ARCHIVE_OK);
+ }
+ return (ARCHIVE_FATAL);
+ }
+
+ return (ARCHIVE_WARN);
+}
+
+/*
+ * Write data to the compressed stream.
+ */
+static int
+archive_compressor_xz_write(struct archive_write *a, const void *buff,
+ size_t length)
+{
+ struct private_data *state;
+ int ret;
+
+ state = (struct private_data *)a->compressor.data;
+ if (a->client_writer == NULL) {
+ archive_set_error(&a->archive, ARCHIVE_ERRNO_PROGRAMMER,
+ "No write callback is registered? "
+ "This is probably an internal programming error.");
+ return (ARCHIVE_FATAL);
+ }
+
+ /* Update statistics */
+ state->total_in += length;
+
+ /* Compress input data to output buffer */
+ state->stream.next_in = buff;
+ state->stream.avail_in = length;
+ if ((ret = drive_compressor(a, state, 0)) != ARCHIVE_OK)
+ return (ret);
+
+ a->archive.file_position += length;
+ return (ARCHIVE_OK);
+}
+
+
+/*
+ * Finish the compression...
+ */
+static int
+archive_compressor_xz_finish(struct archive_write *a)
+{
+ ssize_t block_length, target_block_length, bytes_written;
+ int ret;
+ struct private_data *state;
+ unsigned tocopy;
+ unsigned char trailer[8];
+
+ state = (struct private_data *)a->compressor.data;
+ ret = 0;
+ if (a->client_writer == NULL) {
+ archive_set_error(&a->archive, ARCHIVE_ERRNO_PROGRAMMER,
+ "No write callback is registered? "
+ "This is probably an internal programming error.");
+ ret = ARCHIVE_FATAL;
+ goto cleanup;
+ }
+
+ /* By default, always pad the uncompressed data. */
+ if (a->pad_uncompressed) {
+ tocopy = a->bytes_per_block -
+ (state->total_in % a->bytes_per_block);
+ while (tocopy > 0 && tocopy < (unsigned)a->bytes_per_block) {
+ state->stream.next_in = a->nulls;
+ state->stream.avail_in = tocopy < a->null_length ?
+ tocopy : a->null_length;
+ state->total_in += state->stream.avail_in;
+ tocopy -= state->stream.avail_in;
+ ret = drive_compressor(a, state, 0);
+ if (ret != ARCHIVE_OK)
+ goto cleanup;
+ }
+ }
+
+ /* Finish compression cycle */
+ if (((ret = drive_compressor(a, state, 1))) != ARCHIVE_OK)
+ goto cleanup;
+
+ /* Optionally, pad the final compressed block. */
+ block_length = state->stream.next_out - state->compressed;
+
+ /* Tricky calculation to determine size of last block. */
+ target_block_length = block_length;
+ if (a->bytes_in_last_block <= 0)
+ /* Default or Zero: pad to full block */
+ target_block_length = a->bytes_per_block;
+ else
+ /* Round length to next multiple of bytes_in_last_block. */
+ target_block_length = a->bytes_in_last_block *
+ ( (block_length + a->bytes_in_last_block - 1) /
+ a->bytes_in_last_block);
+ if (target_block_length > a->bytes_per_block)
+ target_block_length = a->bytes_per_block;
+ if (block_length < target_block_length) {
+ memset(state->stream.next_out, 0,
+ target_block_length - block_length);
+ block_length = target_block_length;
+ }
+
+ /* Write the last block */
+ bytes_written = (a->client_writer)(&a->archive, a->client_data,
+ state->compressed, block_length);
+ if (bytes_written <= 0) {
+ ret = ARCHIVE_FATAL;
+ goto cleanup;
+ }
+ a->archive.raw_position += bytes_written;
+
+ /* Cleanup: shut down compressor, release memory, etc. */
+cleanup:
+ lzma_end(&(state->stream));
+ free(state->compressed);
+ free(state);
+ return (ret);
+}
+
+/*
+ * Utility function to push input data through compressor,
+ * writing full output blocks as necessary.
+ *
+ * Note that this handles both the regular write case (finishing ==
+ * false) and the end-of-archive case (finishing == true).
+ */
+static int
+drive_compressor(struct archive_write *a, struct private_data *state, int finishing)
+{
+ ssize_t bytes_written;
+ int ret;
+
+ for (;;) {
+ if (state->stream.avail_out == 0) {
+ bytes_written = (a->client_writer)(&a->archive,
+ a->client_data, state->compressed,
+ state->compressed_buffer_size);
+ if (bytes_written <= 0) {
+ /* TODO: Handle this write failure */
+ return (ARCHIVE_FATAL);
+ } else if ((size_t)bytes_written < state->compressed_buffer_size) {
+ /* Short write: Move remaining to
+ * front of block and keep filling */
+ memmove(state->compressed,
+ state->compressed + bytes_written,
+ state->compressed_buffer_size - bytes_written);
+ }
+ a->archive.raw_position += bytes_written;
+ state->stream.next_out
+ = state->compressed +
+ state->compressed_buffer_size - bytes_written;
+ state->stream.avail_out = bytes_written;
+ }
+
+ /* If there's nothing to do, we're done. */
+ if (!finishing && state->stream.avail_in == 0)
+ return (ARCHIVE_OK);
+
+ ret = lzma_code(&(state->stream),
+ finishing ? LZMA_FINISH : LZMA_RUN );
+
+ switch (ret) {
+ case LZMA_OK:
+ /* In non-finishing case, check if compressor
+ * consumed everything */
+ if (!finishing && state->stream.avail_in == 0)
+ return (ARCHIVE_OK);
+ /* In finishing case, this return always means
+ * there's more work */
+ break;
+ case LZMA_STREAM_END:
+ /* This return can only occur in finishing case. */
+ if (finishing)
+ return (ARCHIVE_OK);
+ archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
+ "lzma compression data error");
+ return (ARCHIVE_FATAL);
+ case LZMA_MEMLIMIT_ERROR:
+ archive_set_error(&a->archive, ENOMEM,
+ "lzma compression error: "
+ "%ju MiB would have been needed",
+ (lzma_memusage(&(state->stream)) + 1024 * 1024 -1)
+ / (1024 * 1024));
+ return (ARCHIVE_FATAL);
+ default:
+ /* Any other return value indicates an error. */
+ archive_set_error(&a->archive, ARCHIVE_ERRNO_MISC,
+ "lzma compression failed:"
+ " lzma_code() call returned status %d",
+ ret);
+ return (ARCHIVE_FATAL);
+ }
+ }
+}
+
+#endif /* HAVE_LZMA_H */
bsdtar_warnc(bsdtar, 0,
"bzip2 compression not supported by this version of bsdtar");
usage(bsdtar);
+#endif
+ break;
+ case 'J': /* GNU tar 1.21 and later */
+#if HAVE_LIBLZMA
+ if (bsdtar->create_compression != '\0')
+ bsdtar_errc(bsdtar, 1, 0,
+ "Can't specify both -%c and -%c", opt,
+ bsdtar->create_compression);
+ bsdtar->create_compression = opt;
+#else
+ bsdtar_warnc(bsdtar, 0,
+ "lzma compression not supported by this version of bsdtar");
+ usage(bsdtar);
#endif
break;
case 'k': /* GNU tar */
case 'x': /* SUSv2 */
set_mode(bsdtar, opt);
break;
+ case OPTION_XZ:
+#if HAVE_LIBLZMA
+ if (bsdtar->create_compression != '\0')
+ bsdtar_errc(bsdtar, 1, 0,
+ "Can't specify both -%c and -%c", opt,
+ bsdtar->create_compression);
+ bsdtar->create_compression = opt;
+#else
+ bsdtar_warnc(bsdtar, 0,
+ "xz compression not supported by this version of bsdtar");
+ usage(bsdtar);
+#endif
+ break;
case 'y': /* FreeBSD version of GNU tar */
#if HAVE_LIBBZ2
if (bsdtar->create_compression != '\0')
OPTION_STRIP_COMPONENTS,
OPTION_TOTALS,
OPTION_USE_COMPRESS_PROGRAM,
- OPTION_VERSION
+ OPTION_VERSION,
+ OPTION_XZ
};
* Short options for tar. Please keep this sorted.
*/
static const char *short_options
- = "Bb:C:cf:HhI:jkLlmnOoPpqrSs:T:tUuvW:wX:xyZz";
+ = "Bb:C:cf:HhI:JjkLlmnOoPpqrSs:T:tUuvW:wX:xyZz";
/*
* Long options for tar. Please keep this list sorted.
{ "keep-newer-files", 0, OPTION_KEEP_NEWER_FILES },
{ "keep-old-files", 0, 'k' },
{ "list", 0, 't' },
+ { "lzma", 0, 'J' },
{ "modification-time", 0, 'm' },
{ "newer", 1, OPTION_NEWER_CTIME },
{ "newer-ctime", 1, OPTION_NEWER_CTIME },
{ "use-compress-program", 1, OPTION_USE_COMPRESS_PROGRAM },
{ "verbose", 0, 'v' },
{ "version", 0, OPTION_VERSION },
+ { "xz", 0, OPTION_XZ },
{ NULL, 0, 0 }
};
archive_write_set_compression_bzip2(a);
break;
#endif
+#ifdef HAVE_LIBLZMA
+ case 'J':
+ archive_write_set_compression_lzma(a);
+ break;
+ case OPTION_XZ:
+ archive_write_set_compression_xz(a);
+ break;
+#endif
#ifdef HAVE_LIBZ
case 'z':
archive_write_set_compression_gzip(a);
projects / thirdparty / libarchive.git / commitdiff
